A customer tells you that they have queued for five minutes at a till, only to be told that the colleague working the till could not help them with their product query. The customer has still not located the exact product they require - they are clearly angry. The product to which they refer is not something you have been trained on. What would you do?

A: Tell the customer that you are very sorry, but that you are not trained on the product that they refer to. Take them back to the right aisle, and then ask them to wait briefly whilst you personally find someone who can help them.
B: Ask the customer to wait for just a couple more minutes until you find someone working in the relevant aisle. Then go and ask your supervisor.
C: Apologise to the customer, and ask them to go back to the aisle containing the product as you are confident that a suitably trained colleague will be back in a minute.
D: Ask the customer questions about the product that they want, and see if you can help them by interesting them in a product from the aisle in which you are working.